97949920 has 48 divisors (see below), whose sum is σ = 245025648. Its totient is φ = 36874240.

The previous prime is 97949909. The next prime is 97949947. The reversal of 97949920 is 2994979.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15286 + ... + 20725.

It is an arithmetic number, because the mean of its divisors is an integer number (5104701).

Almost surely, 2^97949920 is an apocalyptic number.

It is an amenable number.

97949920 is an abundant number, since it is smaller than the sum of its proper divisors (147075728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97949920 is a wasteful number, since it uses less digits than its factorization.

97949920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36043 (or 36035 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 97949920 is about 9896.9651914110. The cubic root of 97949920 is about 460.9650815900.

The spelling of 97949920 in words is "ninety-seven million, nine hundred forty-nine thousand, nine hundred twenty".